Triple

Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).

Phrase: Simon de Montfort, 5th Earl of Leicester | Statement: [Count of Montfort, notableBearer, Simon de Montfort, 5th Earl of Leicester]

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Entity: Simon de Montfort, 5th Earl of Leicester
Triple: [Count of Montfort, notableBearer, Simon de Montfort, 5th Earl of Leicester]

Simon de Montfort, 5th Earl of Leicester, was a 13th-century French-English nobleman and military leader who led the baronial revolt against King Henry III of England and played a key role in the early development of the English Parliament.